Door check and closer.



J. HOFERLE.

DOOR CHECK AND CLOSER.

APPLIOATION FILED MAR. 30; 1914.

. 1,133,725. Patented Mar. 30, 1915.

THE AOAA'LS PETERS wnPuomun-don WASHINGTON n. C,

JOHN Hornets, or onroaeo; mums, ASSIGNOE or olvn-rouzarrr no HENRY A;

I-IOFERLE, onn-rounrrrro ANDREW AUER, AND ONE-FOURTH T0 Louis Anna, 1

ALL OF CHICAGO, ILLINOIS. f

" Application fi ledMaIchtiO,191s. Se1 ia1 1\1'o.828,132.

To all whom it mayconcem: v g V Be it known that'LJOHN Hornnnn, acitizen of the United States, residing. at Chicago, inthe county of Cookand State of Illinois, have invented certain new and use- .fulImprovements in Door Checks and Closers, of which the following is aspecification. w I I 7 My invention relates to an improvement in theclass of door checks whereinthe door is closed by means of a suitablecontraction spring and is checked or retarded in its closing motion bymeans of a cushion of air or other fluid in order toretard the finalmovement of the same and prevent the slamming thereof. 7

A further object ofmy invention is to construct a door check and closerin as simple a manner as possible to avoid the same getting out oforder, and toreducethe parts to a minimum number in orderto'decrease thecost of manufacture but without detracting from its efiiciency.

The above and still other objects I accomplish by the means and in themanner hereinafter fully described and as more particularly pointed outin the claims, reference being had to the accompanying drawings forminga part of this specification, wherein:

Figure 1 is a horizontal plan view of my improved door check and closerapplied to a door and frame, showing the door closed; Fig. 2 is a viewsimilar to Fig. 1, showing the door open at substantially a right angleto the door frame; Fig. 3 is a vertical end elevation of the sameshowing the door in the position shown in Fig. 2; and, Fig. 4 is anenlarged sectional view taken on line 4-4 of Fig. 3, showing theadjustable connection between the two arms or toggle.

Referring to the drawings, A represents a suitable door that issupported by hinges on one of its vertical edges that are secured to theframe B, surrounding the door opening in the wall of the building. Thedoor check and closer itself comprises a cylindrical or tubular member 6in which a suitable piston 7 is adapted to operate and these two partsare constructed and arranged in substantially the same manner asdescribed in a pending application for United States Letters Patentfiled December 26, 1912, Serial No. 738,558, and need not therefore bede- Speoification of Letters Patent.

noon annex AnncLosEn.

' rammed Mar. 30,1915.

scribed in detail herein. Suflice it to say, however, that theypiston-rod 7 in this instance is hollow and a coiled contraction springin is inclosed thereby, one end of said spring being connected to theclosure cap at the outer end of the piston-rod while the opposite end ofsaid spring is similarly connected tov the closure cap at the outer endof vided with a pivotal lug that is adapted to be insertedbetween theparallel arms of a bifurcated pivot bracket 8 secured to the .l ntel orupper horizontal member of the door-frame. The outer end of the cylinder6 is supported u'pon the hinge of a suitable toggle one of themembers'of which com- ..prlses a horizontally disposed substantiallyL-shaped arm 10 that has its upper end reduced to form a pintle 11 thatis screwthreaded and passes up through an opening in a lug 9 projectinglongitudinally from the cap on the outer end of the cylinder 6. SaidL-shaped arm 10 has its inner end bifurcated and pivotally mounted on abracket 12 secured in any suitable manner to the upper edge of the doorand which is so positioned'that said arm under normal conditions is in aplane at substantially right angles to the plane of the door whenclosed. The other member of this toggle comprises an extensible oradjustable link, the inner member 13 of which is pivotally secured tothe door frame above the door by means of a bracket 14 and having itsshank screw-threaded to fit into the screw-threaded bore of the othermember 13 thereof. Member 13 is preferably bent or deflected laterallyat its outer end and is adapted to be adjustably and pivotally mountedin a slotted lateral boss 10 that is formed on one side of the shortervertical portion of the L-shaped arm 10 before mentioned, which pivot isbelow and substantially in axial alinement with the pintle 11 for thecylinder.

It will be observed from the above that the pivotal point of the outerend of the cylinder being in alinement with the plvot or hinge of thetoggle and the pivotal end of the piston being at an acute angle to theaxis of said arm 10 the tendency of the conwill remain in an openedposition. This contingency will not occur until: the door,

has been opened to an angle of more than a Eight angle (90) to the planeof the door rame,

" "Havin thus described my invention what TE'claim as new and desire tosecure by LettiersPatent, is-:'"

'1 A door check and closer comprising acylinder and-plunger therefor;means cerr'ied'thereby for; effecting the closure of; the

door, and atog'gle consisting are straight link anda snb'st'antially'L-s'haped' link the shorter of which is vertically disposed, anofl-s'et member projecting laterally from the shorter of said L-shap'edlink to "which the oppositelink is pivotally eon- I'iected andtd the endof saidshortenarm said cylinder is pivotally connected A door check'andcloser" comprising} cylinder and pl g r efo n r-v the closure of thed'o'or, and atoggle conslsting" of a: straight ried thereby fore.

eating sh r er. ar

link and a substantially L shaped link the shorter arm of which isvertically disposed,

an ofi-set memberprojecting laterally from V the shorter arm of said'L-shaped link and provided with a slot and having severalopeningstransverse to said slot in one of which the adjacent end of theopposite link ispivoted; and to the upper end-. of-said V I saidcylinder is pivotally conneeted. 1

3, A door closer and check co P l cylinder anda pistonytherefor', neans'ior reflecting said piston within" said cylinder, a bracket 'pi'voted to the enter end of said piston, a toggle consisting of twolinksa'djuhbably pivoted' together and pivotally conheated at their hinged ends' to the haser of "said cylinder; one" of said links pivotal-1ysecured to the door opposite the base of the cylinder and the otherof-said" links pivotally seel'lred to the door casing adjacent the"place er attachmentof the; first-mentioned when the door is closed. vIntestirnony whereof I aftix-Inysignatnrc inthe presence oftwowitnesses.

Witnesses: r 7

E. K. LUNDY, J12, i HENRY A, Hornnnns jlo pi s of this" phtent may beobtained for are cents each, bfnddresi-nz the fieinmh sioner' of PatentsWashington-Q10 JOHN H F E

